This listing is for a brand new in the box Makita 18V 6-1/2" LXT Lithium-Ion Cordless Circular Saw (Bare Tool)
The specs are as follows:

 

Makita BSS610Z Specifications:
•Voltage 18V
•Blade Diameter 6-1/2"
•Arbor 5-8"
•No Load RPM 3,700

Makita BSS610Z Includes:
•Tool Only

Makita BSS610Z Features:
•Blade Brake
•Work Light
•Makita built, D35 high torque motor delivers maximum power for cutting 2x material at 45 with 50 maximum capacity
•Compact design at only 13-5/8" length and weighs only 7.1 lbs. for less operator fatigue
•Ergonomic shape fits like a glove with even pressure and easy control
•LXT Lithium-Ion provides longer run time, 5x lower self-discharge (for use any time) and 16 firm holding contact terminals (for constant high power)